# Copyright (C) 2025 Kumo inc.
# Author: Jeff.li lijippy@163.com
# All rights reserved.
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as published
# by the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with this program.  If not, see <https:#www.gnu.org/licenses/>.
#

import random

from turbo import flags
from turbo.testing import turbotest


FLAGS = flags.FLAGS
flags.DEFINE_boolean('set_up_module_error', False,
                     'Cause setupModule to error.')
flags.DEFINE_boolean('tear_down_module_error', False,
                     'Cause tearDownModule to error.')

flags.DEFINE_boolean('set_up_class_error', False, 'Cause setUpClass to error.')
flags.DEFINE_boolean('tear_down_class_error', False,
                     'Cause tearDownClass to error.')

flags.DEFINE_boolean('set_up_error', False, 'Cause setUp to error.')
flags.DEFINE_boolean('tear_down_error', False, 'Cause tearDown to error.')
flags.DEFINE_boolean('test_error', False, 'Cause the test to error.')

flags.DEFINE_boolean('set_up_fail', False, 'Cause setUp to fail.')
flags.DEFINE_boolean('tear_down_fail', False, 'Cause tearDown to fail.')
flags.DEFINE_boolean('test_fail', False, 'Cause the test to fail.')

flags.DEFINE_float('random_error', 0.0,
                   '0 - 1.0: fraction of a random failure at any step',
                   lower_bound=0.0, upper_bound=1.0)


def _random_error():
  return random.random() < FLAGS.random_error


def setUpModule():
  if FLAGS.set_up_module_error or _random_error():
    raise Exception('setUpModule Errored!')


def tearDownModule():
  if FLAGS.tear_down_module_error or _random_error():
    raise Exception('tearDownModule Errored!')


class FailableTest(turbotest.TestCase):

  @classmethod
  def setUpClass(cls):
    if FLAGS.set_up_class_error or _random_error():
      raise Exception('setUpClass Errored!')

  @classmethod
  def tearDownClass(cls):
    if FLAGS.tear_down_class_error or _random_error():
      raise Exception('tearDownClass Errored!')

  def setUp(self):
    if FLAGS.set_up_error or _random_error():
      raise Exception('setUp Errored!')

    if FLAGS.set_up_fail:
      self.fail('setUp Failed!')

  def tearDown(self):
    if FLAGS.tear_down_error or _random_error():
      raise Exception('tearDown Errored!')

    if FLAGS.tear_down_fail:
      self.fail('tearDown Failed!')

  def test(self):
    if FLAGS.test_error or _random_error():
      raise Exception('test Errored!')

    if FLAGS.test_fail:
      self.fail('test Failed!')


if __name__ == '__main__':
  turbotest.main()
